Plow attachment



J. STIRUNG. PLOW ATTACHMENT. APPLICATION FILED MAR. 19; 191-8.

Patented Aug. 19, 1919.

ma COLUMBIA PLANOGRAPH co., WASHINGTON, n. c.

,To all whom itmay concern.

UNITED sTATiEs PATENT OFFICE.

' OHN STIRLING, 0F GRA- 'BOW, LOUISIANA.'

rLow ATTACHMENT.

Be it knownthat I,

vide an improvement in plow constructions servlng to take the place of the sole plate ordinarily provided on plows,,which it is well understood'loy agriculturistsafter repeated plowing of a field, produces a hardened stratum of earth which greatly obstructspermeation of the soil by water, and.

also limits the penetration of crop roots, all

of which have detrimental effects. With the wheel element.

use of'my device no packing of the soil beneath the'plow need occur, aswould happen with the ordinary plow having 'a' sole base,

and therewill also beless frictional resist ance to the forward movement of the plow.

It is also a purpose of the invention to effect desirable improvements" in thespecific construction and mounting of such an appliance, enabling the production of a steel faced wheel deviceat a low cost, using but a'small quantity'of steel, yet retaining the advantage of a heavy wheel, body ofcast lmetal A further aim is-toimprove the functioning of thedevice having-a steering eflect upon the plow tending'to keep it upon a straight line during forward 'inovemenh'as will appear. I

Figure 1" is a detail view of the appliance upon a plow.

Fig. 2 wheel. v

Fig. 3 is a plan view of a blank'for the Fig. 4: is an enlarged detail of uimofi nt ing of the fork.

There is illustrated a plow comprising a stock element 10, uponthe forward part of which there is mounted a low point and mold board 11 which may e stamped integ'rally from one piece of sheet metal, and extending rearwardly from the stock 10 there is a wheel mounting 12 carrying a wheel 13 having a sharpened edge portion,

JOHN STIRLING,. a citizen of the United States, residing at Gra- The invention has for anoliiject to'pro- Additional objects, advantages, and fea; tures' of invention will appear-from the construction, arrangement and combination of the parts as particularly described hereinafter, and shown in the drawings, wherein,v

is a cross sectionalview of thethe sides of which'are inclined toward each other at an acute angle, so that the body por tion of thewheel intermediately of the axis and periphery is extremely narrow, it being the intention that the wheel shall sink consider'albly in the subsoil behind the plow,

whereby twisting or turningof the plow S pecificationof Letters Patent; Patnted Aug,'19; 1919,. A s-align filed Marc 19, 1913;" 7 Serial no. 223,320.

will be resisted by the wheel, which itself cannot readily be turned on a Vertical axis when embedded as indicated in the drawings.

'Thewheel mounting consists of a fork 1 elementhaving parallel arms, in the outer ends of which there is fixed a shaft 14: en-

gaged through the, wheel, and the mounting 1-2 is bolted to the stock in a suitable manner. .The head portion of the fork is suitably apertured to receive a bolt 15 engaged therethrough and through the stock 10, and

the bolt 15 may be apart of the means utilized for holdingthe plow 11 to the stock 10. 'The head of the fork may also have a set'screw 1 6 engaged therethrough, to impinge against a washer 17 confined between the head of the fork and the back side of the stock 10, the washer having portions turned outwardly-beside the stock 10 to prevent it fromturning, and the set screw serving to prevent the fork from turning upon.

the bolt.

in which the fork element is formed "of two parts, inclu d1ng the side arms12, having uppeninturned portions 18 which are extendedfrom'stem portions 19 extending longitudinally therefrom in a plane parallel to the arms '12 and securely bolted together. The stem portions have outer forward parts bent laterally at right angles thereto in a common. plane to form attaching flanges 20, extending outwardly, into the plane of the arms 12' 'A clamping plate 21 is provided, havingan areaequal to the combined area of 'thetwo flanges'20, and the plate 21, and the'fianges 20 and 'head portion 18 are provided withregistered openings v at each side, those in the flanges 20 being threaded, and receiving therein threaded bolts 22, which are slidably engaged through the plate 21 and head portions 18. Between the head portion and flanges 2O suitable nuts 23 are engaged upon the bolts movable to bear against the head portions 18 as will be subsequently described for adjustment of the support arms with relation to the longitudinal axis of the plow to which the device is In &,there is indicated aconstruction I attached. Suitable nuts 24 are also provided at the outer ends of the bolts 22 whereby the plate 21 may be, bOIIlQ tQWaId the.

flanges 20 to clamp an interposed plow stock, for mounting of the appliance. e T The wheel element may be formed in arious wey thut. p e erably. comprises opposed slightly dished steel disks 2 5 haying their edges suitably beveled toward their recessed sides, in order that the disks ey e hr u htq her u ly in e ih hh t rm a sherned' e- The d sk ent f y petth idth? med t elyedr jacent portions around the apertures are pressed inwardly in a cylindrical form, end trimmed with the ends: of the cylindrical portions in a plane with the edgeportions of the respective disks, so that when the disks.

are br ug e he h yl hitieel Pet-L tions abut snugly to form a continuous PP$ itg r ug the Whe l, A. pl hfel ty e ie t ly h ped ngu 27 he rte eed inwardly-fronrthe material of the disksout wardly of the skein portions 26, projecting.

inwardly at an oblique angle to the adjacent: portions'ofthe disk and to the medial plane of the wheel. The space between the, disksis fi l d with an eep t l ethe tee-ti. s, an i would be ei e ,te u eeit h th t et-te p f a he m he la e having the effect, offorn ing a cellular struchre h e. edy lf he Whee h tp rp. ee of the filling being merely to give body and id y he h el; e he h te 15 1 3;

el as ment ned isqui e e te te yn. the tl e iee t e .theel, 3&1) he p ie ed xi thed. e SklRPQlZ mg heede fikr entwithin mel tihlfl'e i r -d te hgthe filling metal may be followed.

' extent.

lnt eh eef. th hpplieneeeth heel being assembled, in the described, the rk s ut d up n. th v te t, oi he PlQW su h Pos i n th t; the meter o the heel at t lowe pert .ex etttlele her the: an ep elow th plow, the lt t te he ght; QIEY.

the wheel to the plow,,however, being .de:

plo tzhe ebx itl x rts e. heetin ef ect 1 991! the Plo e eh the men: e it llew e 'line e it fetwe -t ta he lh t; heetlmi rher, t

results. Qfitllti;.lt fifilfll forces acting upon the plow, and the wheel, but having a markedly steadying effect upon the plow, preventing abrupt deviation from the path desired, and

obviatingemnch of the labor required-ep thet part of the plown an in pulling the plow handles first one way and then the other to counteract the effect of small bodies of s oil t i iering i eheity 'eq hp t th s s e edtfith li eque ti .Qf tfee With e leie dies Eibe l fo th Q dev f e t i'eiseeh ted. 119. 1 t Pl s i .bekl-fq hd ht t. w th he Style Q P w employed and the position of the wheel as t ttt ehetl t e ,PlQ tends te. fol ow I ne, elhig e tethe path trave d: y. t ettiv lheelie hiehlhhey omp e n hime er; me hehiee teeter, whi h e, th the, hehd ee'et th ipl w w uld h t dheten t hrown r ne ide he teree this t n y, th mean e T led' er giv hg he. p ow e irecq'h l hidih, ,rlllfi lt 'q dih 'ti r Howeye y m ets O enuts .23ydeserib d, leqseh g, er e s t ha ti l P.1d i h ening th re f tihst the hea ,pq t ie 1 7 it he opposite devvi le le tieh at its; theielz pl h t0 he lQ lg -o tud n l a xisioftlie low. togrectify the error hltsdireetionalg. etiQ h Whe s 1 aimed Ihf h leyieeof a e wheel. eem hi ihg twe. l 'shedt s et. s ee isks-theme eeht e g petiti n Pre d intttelly e t x'm e ie jt i. and

. wlhgmee in P ph a edge portions; a "a a; filling of bas m r; 2- 11,11 eet e ne he: h tteeter oleeer b d, e whee ;eehinri ihgediehei heet teel isk a ing eht el;Pt t phespreee dt m trdlynto Im-. Z1i f s xeiee emehte end he hl meeting peripheral edge portions and afilI-J hghf ha e .xaetttl, said. ekeeh t ihg tongu hiekht therefr my s ticl e metal b he.

est be ween. th li h arou d, said hgeee;

Ihte ti ehr Wh reet- I hate t x d my gheth e hrxpf ee tee n Witn s s-A JOHN STIRLING, -W ee ses= a t .IZ'SHAW,

,Nteeet cqp setthtes et et ei'he eeteihee t; he event ha.hieeshe tthee he hemhe eh lr ht e eh e;

wet he Whe in he hg hrut'ting cylindrical, skeii e eh t t tete de c be 

